Influenza epidemic raging in the world, people once again feel the crisis coming, the state launched an emergency epidemic prevention plans and reporting system of epidemic outbreaks. From the early spread of the epidemic, to strengthen our ports of entry each passenger security checks, once suspected or influenza patients, immediately suspected patients, close contacts of influenza patients and a separate isolation, cut off the transmission of the virus in order to avoid more the population is infected.
Outbreaks of epidemic diseases prevention and control measures to follow the "cut off the transmission, 鎺у埗浼犳煋婧?to protect vulnerable populations," the principle of the three elements of prevention and treatment of the virus, the same principle can be applied to the computer virus prevention and control work. Network Anti-virus work in the enterprise, the company will choose the first node in the client install anti-virus system, to end infected with viruses as clear, in fact this is the last line of defense against the virus prevention and treatment, once the virus broke through the defense line, the system will be infected with the virus, and soon spread. Therefore, in accordance with the principles of the three elements of anti-virus epidemiology, enterprises should first pass the virus early detection of virus invasion, cut off the transmission of the virus, gateway anti-virus on the network just can effectively prevent the entrance of viruses and virus is found cut off the transmission of the virus. Cut off the transmission of the virus, also can control the further spread of the virus can effectively control the spread of the virus and reduce the number of infections.
For example, the KILL deployed in the network border gateway anti-virus, it can be passed on to all network traffic and data analysis filter, through the network layer, transport layer, application layer data to identify and correlation analysis, the intercept viruses and suspicious network behavior, cut off the transmission of the virus. In the network layer, KILL anti-virus gateways can be based on IP address, port number and connection behavior of the firewall access control; in the transport layer, based on TCP / UPD / ICMP protocol and packet analysis features to identify, block worms, hackers, DoS / DdoS attack; in the application layer, on a variety of commonly used protocols (HTTP, SMTP, POP3, FTP, etc.) in-depth analysis, check for viruses, worms checks, spam, illegal content inspection and examination to ensure normal network data transmission.
Gateway anti-virus not only can block the virus, blocking viruses, especially the spread of worms, it can record the route of transmission of the virus. For example: by looking at anti-virus gateway filter KILL log, network administrators can understand what IP addresses have been infected with the virus trying to attack our internal network, internal network if the machine has been infected with a virus, and the other in an attempt to node for transmission of the virus. In this way, network managers can quickly isolate the infected machine, and further cut off the network, including the spread of the virus.
Influenza epidemic has spread around the world, we can not in a very short period of time completely eliminate the virus, but we can take effective control measures to cut off the transmission of the virus and reduce the virus's spread and reduce the virus infected number of greatly reduced infection levels. The same principle, in terms of network anti-virus system, if we establish an effective network of prevention and control measures can also reduce the spread of the virus and infection rate of the number of effective prevention and control of the virus. For example, at the gateway anti-virus gateway deployment KILL effectively block viruses, filter unwanted data, cut off the transmission of the virus; in the terminal node to install the desktop anti-virus software, such as: KILL anti-virus system, complete detection and removal of various computer virus. Anti-virus and anti-influenza as the virus transmission cut off as soon as possible is the key to prevention and control.
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